With its curvaceous, spiky blooms Dahlia 'Cactus Hybrid' is huge cut flower source. Many are fully double-mostly true to type. Superb in the flower border for late summer/autumn blooms. Flowers late summer/autumn. Height 3-4ft. Planting distance 27 inches.

Sow at 21-24C (70-75F) in a good seed sowing mix. Keep soil damp but not wet, sealing in a plastic bag after sowing is helpful. Germination usually takes 7-10 days.

When seedlings are large enough to handle, transplant and grow on in cooler conditions. Gradually acclimatize to outdoor conditions for 10-15 days before planting out after all risk of frost 80cm (27in) apart in a sunny spot on any good moisture retentive soil.